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Mr. Okrasa 
Original Old Speed
Joined: May 20, 2000
Posts: 745
Location: Eastside, Costa Mesa. So. Califas...Loco's ;-)
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 Posted: Fri Aug 22, 2008 7:34 pm Post subject: 1955 Bus Gen. Nut / Pulley Question... Help! |
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OK! Im putting it out here! Im putting the finishing touches on a customers June/'55 bus engine and having trouble finding out which gen. nut/pulley is correct! Did VW use the BIG thick nut or the BIG "thin" gen. nut similar to nut that is used to hold the fan on? Is either correct or ???
This engine proved to be the most difficult for me to restore CORRECTLY so any imput based on your experiances would be greatly appreciated! If you have photos, even better!!! Post them here....
Im going to post photos of the engine once its done and test running it in my shop.
HELP!!!
Thanks, Mr. Okrasa |
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Fri Aug 22, 2008 7:40 pm Post subject: |
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What is the VIN number for the bus?
These are scans from the March 55 bus owners manual.
According to progressive refinements, VW switched to the smaller 21mm generator pully nut in August 1955. |
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Rusting Hulk
Samba Member
Joined: August 20, 2002
Posts: 646
Location: Malvern UK
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| Posted: Sat Aug 23, 2008 12:41 am Post subject: |
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It should have the three piece top pulley with a big nut on a thin slot generator and the thin lipped crank pulley. Although the pic in the handbook shows the deeper lipped generater pulley so i may be wrong. I didnt know that two different 'big' nuts were used, i would also be interested which one is right
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64 356 C Coupe |
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splitvws
Samba Member
Joined: February 12, 2004
Posts: 142
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| Posted: Sat Aug 23, 2008 7:03 am Post subject: |
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| The one shown in the manual is a three piece pulley that has the deep lip. This is the pulley I have on my Feb 55 and I belive was used through July 55. |
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Wolfsburg Classics
Banned
Joined: October 17, 2003
Posts: 326
Location: Christchurch,New Zealand.
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| Posted: Sat Aug 23, 2008 4:46 pm Post subject: . |
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The correct top pulley for a June '55 engine should have the large 36mm nut with the VW stamping,be three part and also have the lip and sometimes a counter weight balance on the pulley.
One more detail question,do you the the right '54-'55 Solex pre 28PCI carb on it??....they are tough to find. |
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Rusting Hulk
Samba Member
Joined: August 20, 2002
Posts: 646
Location: Malvern UK
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| Posted: Sun Aug 24, 2008 9:06 am Post subject: |
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So when did the top pulley change from thin lipped to large lip? I'm guessing sometime in late 54'? I presume that the fatter nut (if there are two types) goes with the lipped pulley so its easier to get the spanner on it.
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64 356 C Coupe |
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Mr. Okrasa
Original Old Speed
Joined: May 20, 2000
Posts: 745
Location: Eastside, Costa Mesa. So. Califas...Loco's ;-)
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| Posted: Sun Aug 24, 2008 5:18 pm Post subject: 1955 Bus Gen. Nut / Pulley Question. New Info! Please read! |
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First of all, Thank You for all your responses I have recieved so far!
I emailed the owner of this engine that im building and he managed to find the build date of his bus, May 12, 1955. The engine number is: -20-1060XX. In light of this new information and the new photos that I just posted today, can anybody shed more info. if the photos of the generator pulley/nut combo is correct? For referrence purposes, I have attached a photo of the Okrasa engine that I built for Gregory Noble's 1955 bus engine serial number: -20-11861XX.
Some people have emailed me saying that the gen. nut should be the "thin" type identical to the nut that is used to hold the fan? Does that sound correct?.......
Again, thanks for all your help and continued support in this customers engine build.
Cheers! Mr. Okrasa www.imageevent.com/mrokrasa
Gregory Noble's 1955 Bus / Okrasa
Santiago's Eng.
Last edited by Mr. Okrasa on Mon Sep 01, 2008 2:38 pm; edited 3 times in total |
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EverettB
Administrator
Joined: April 11, 2000
Posts: 71547
Location: Phoenix 602
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thom
Samba Member
Joined: October 12, 2000
Posts: 6177
Location: Sacramento
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| Posted: Mon Aug 25, 2008 6:15 am Post subject: |
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I think you should have the thick pulley.
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-Thom
1956 Single Cab
1957 Porsche 356A Sunroof
1957 23-Window Deluxe
1957 Mercedes Westfalia single cab
1963 Unimog 404
1965 E-Type |
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Suboval
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Mon Sep 01, 2008 11:51 am Post subject: |
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Hey Joe, here are some photos of what I believe are the correct pulley.
Complete setup including 8 1.5mm shims.
Close-up of inner pulley half.
Close-up of outter pulley half.
Spacer and nut. The spacer and nut are the same as the earlier pulleys.
Close-up of spacer.
Comparison shot between fan pully nut and generator pulley nut. Generator pulley nut is thicker.
Spacer installed.
Inner half installed.
Comparison shot between '55 inner half and the earlier split beetle inner half. '55 left, earlier right.
Everything together.
Tool from stock VW tool roll.
This is installed on my 7L (July 1955) thin slot generator, which is headed into my July '55 bus. Plenty of other stuff to do to make the engine "correct" though....starting with the Brazilian dizzy cap and the later fuel pump. It's a work in progress. |
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grailoc
Samba Member
Joined: March 25, 2004
Posts: 1472
Location: FRANCE and now QUEBEC city
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Mon Sep 01, 2008 1:46 pm Post subject: |
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| grailoc wrote: |
here is a pic of the original engine installed on my 1955 oval window:
if it can help.
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Can you post more photos? What month are the beetle & engine from? |
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EverettB
Administrator
Joined: April 11, 2000
Posts: 71547
Location: Phoenix 602
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Mr. Okrasa
Original Old Speed
Joined: May 20, 2000
Posts: 745
Location: Eastside, Costa Mesa. So. Califas...Loco's ;-)
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| Posted: Mon Sep 01, 2008 2:47 pm Post subject: Santiago's May/1955 Bus Eng. Build |
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Here it is! Completed and all I have to do is to now is put it through the break-in / testing phases before it goes to the crating company for proper shipping and then to its owner!
I would like to thank everybody that participated in this thread and their imputs. 1955 was a "difficult year" as to what is correct? There were so many changes during this year that not too many people knew without a doubt as to what is correct. Either the VW factory was introducing new designs/styles and putting them on early engines or they were depleting their inventory and using it up on newer engines.......Nevertheless, A BIG THANKS TO EVERYONE!
Cheers! Mr. Okrasa 
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Mon Sep 01, 2008 2:51 pm Post subject: Re: Santiago's May/1955 Bus Eng. Build |
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| Mr. Okrasa wrote: |
Here it is! Completed and all I have to do is to now is put it through the break-in / testing phases before it goes to the crating company for proper shipping and then to its owner!
I would like to thank everybody that participated in this thread and their imputs. 1955 was a "difficult year" as to what is correct? There were so many changes during this year that not too many people knew without a doubt as to what is correct. Either the VW factory was introducing new designs/styles and putting them on early engines or they were depleting their inventory and using it up on newer engines.......Nevertheless, A BIG THANKS TO EVERYONE!
Cheers! Mr. Okrasa ;-)
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Awesome!
Better fix that fuel pump before it ships out Joe. It needs one of the "wavy top" ones.
Lets see some more detail shots..... |
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Nirvana
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Joined: August 28, 2008
Posts: 38
Location: Portugal
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| Posted: Mon Sep 01, 2008 8:28 pm Post subject: |
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I think I come late 
Photos from my 55 dirty motor.. sorry the bad quality
(Don't look at my fuel line/red tank hack  ) |
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Mon Sep 01, 2008 8:34 pm Post subject: |
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| Nirvana wrote: |
I think I come late :?
Photos from my 55 dirty motor.. sorry the bad quality
(Don't look at my fuel line/red tank hack 8)) |
What month production is the bus & engine? |
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Nirvana
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Joined: August 28, 2008
Posts: 38
Location: Portugal
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| Posted: Mon Sep 01, 2008 8:49 pm Post subject: |
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| campingbox wrote: |
What month production is the bus & engine? |
Engine Number: 20.116021* |
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campingbox
Samba Member
Joined: November 14, 2000
Posts: 10250
Location: Petaluma, CA
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| Posted: Mon Sep 01, 2008 9:08 pm Post subject: |
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| Nirvana wrote: |
| campingbox wrote: |
What month production is the bus & engine? |
Engine Number: 20.116021* |
Looks like the coil and air cleaner have been changed.
What date is printed on your generator? It should have a two digit code like 8L or 9L printed near the next of the casing behind the regulator. Interesting that it has the wire clips for the dizzy cap, I would have thought those would have been done by then? |
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